Distinguish between BP and BP S combined high power laser tubes

SLC Is An Acronym That : Spectron Laser CO2 ELC Is An Acronym That : Eco2 Laser CO2 HLC Is An Acronym That ：Hengkuai Laser CO2 HHLC Is An Acronym That：H HENGKUAI LASER CO2 SLC: Original Imported Accessories, Imported Technology, GSI Technology ELC : Part Of Domestic Accessories, Imported Technology, GSI Technology HLC: Part Of Domestic Accessories, Domestic Technology, GSI Technology HHLC: Domestic Accessories, Domestic Technology, GSI Technology Number = Laser Rated Output Power (W) Example: SLC140 Is 140 Watts Single Letter = Position Of Beam Waist Example: SLC140B (N Means The Beam Waist Is At The Light Outlet) (B Means The Beam Waist Is 1.1 Meters Away From The Light Outlet) Double Letter = Linear Polarization Beam Combiner (System A Tube) Example: SLC140BP Double Letter S = Random Polarization Beam Combining (System B Tube)